Fletch
Member
This is my piston covered in black...
I was using a really long ngk iridium plug which came really close to the piston. In fact, the side that is all black is the side the plug is on my slant head.
My questions are:
1) Should I clean it?
2) Can I clean it
3) If yes, with what?
4) Is this out of the ordinary after 250 miles?
I was using a really long ngk iridium plug which came really close to the piston. In fact, the side that is all black is the side the plug is on my slant head.
My questions are:
1) Should I clean it?
2) Can I clean it
3) If yes, with what?
4) Is this out of the ordinary after 250 miles?